Each valve, the use of which may be necessary for the safe operation of a distribution system, must be checked and serviced at intervals not exceeding fifteen months, but at least once each calendar year.
Haw. Code R. § 6-77-196
Each valve, the use of which may be necessary for the safe operation of a distribution system, must be checked and serviced at intervals not exceeding fifteen months, but at least once each calendar year.
Haw. Code R. § 6-77-196